at first, I did a pre-study of Andrew. I could get a reasonable likeness in 30 minutes.
I started with a simple Loomis head and worked in the shadows and Features until I got the likeness.
In this version, I did more measurements to fix the problems I had to draw the study before.
After outlining the head I worked in the form shadows with several Players.
I used different pencils from 2H to 6B on Strathmore paper, Bristol Series 400.
The big challenge was to get the right halftones.